2n+3.9=7.5

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Solution for 2n+3.9=7.5 equation: 


Simplifying
2n + 3.9 = 7.5

Reorder the terms:
3.9 + 2n = 7.5

Solving
3.9 + 2n = 7.5

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-3.9' to each side of the equation.
3.9 + -3.9 + 2n = 7.5 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + 2n = 7.5 + -3.9
2n = 7.5 + -3.9

Combine like terms: 7.5 + -3.9 = 3.6
2n = 3.6

Divide each side by '2'.
n = 1.8

Simplifying
n = 1.8

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